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1. WO2020133927 - METHOD AND DEVICE FOR CONTROLLING LOW-TEMPERATURE REFRIGERATION AIR VALVE

Publication Number WO/2020/133927
Publication Date 02.07.2020
International Application No. PCT/CN2019/090145
International Filing Date 05.06.2019
IPC
F24F 11/70 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
F24F 11/64 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/61 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
50characterised by user interfaces or communication
61using timers
F24F 140/10 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
140Control inputs relating to system states
10Pressure
F24F 110/12 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
110Control inputs relating to air properties
10Temperature
12of the outside air
CPC
F24F 11/61
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
50characterised by user interfaces or communication
61using timers
F24F 11/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/70
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
Applicants
  • 合肥美的暖通设备有限公司 HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. [CN]/[CN]
  • 广东美的暖通设备有限公司 GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. [CN]/[CN]
Inventors
  • 梁鑫 LIANG, Xin
  • 杨国忠 YANG, Guozhong
  • 王命仁 WANG, Mingren
  • 谭志军 TAN, Zhijun
Agents
  • 北京清亦华知识产权代理事务所(普通合伙) TSINGYIHUA INTELLECTUAL PROPERTY LLC
Priority Data
201811641425.529.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND DEVICE FOR CONTROLLING LOW-TEMPERATURE REFRIGERATION AIR VALVE
(FR) PROCÉDÉ ET DISPOSITIF DE COMMANDE DE VANNE D’AIR DE RÉFRIGÉRATION À BASSE TEMPÉRATURE
(ZH) 低温制冷风阀的控制方法及其装置
Abstract
(EN)
Provided in the present invention are a method and a device for controlling a low-temperature refrigeration air valve, wherein the method comprises: acquiring a current environment temperature; according to the current environment temperature, determining an initial target pressure of the current system and an initial opening degree of an air valve; acquiring an actual pressure of the current system and the current system target pressure; and adjusting the opening degree of the air valve according to a difference value between the current system target pressure and the current system actual pressure, wherein the air valve is arranged on a low temperature cover. Therefore, according to the low-temperature refrigeration air valve control method provided in the embodiment of the present invention, the opening degree of the air valve is adjusted according to the difference value between the current system target pressure and the actual pressure of the current system, so as to meet the refrigeration needs of a user in an ultra-low temperature environment, and expand the scope of refrigeration operations.
(FR)
La présente invention concerne un procédé et un dispositif de commande d’une vanne d’air de réfrigération à basse température, le procédé comprenant : l’acquisition d’une température d’environnement actuelle ; en fonction de la température d’environnement actuelle, la détermination d’une pression cible initiale du système actuel et d’un degré d’ouverture initial d’une vanne d’air ; l’acquisition d’une pression réelle du système actuel et de la pression cible du système actuel ; et l’ajustement du degré d’ouverture de la vanne d’air en fonction d’une valeur de différence entre la pression cible du système actuel et la pression réelle du système actuel, la vanne d’air étant disposée sur un couvercle à basse température. Par conséquent, selon le procédé de commande de vanne d’air de réfrigération à basse température fourni dans le mode de réalisation de la présente invention, le degré d’ouverture de la vanne d’air est ajusté en fonction de la valeur de différence entre la pression cible du système actuel et la pression réelle du système actuel, de façon à satisfaire les besoins de réfrigération d’un utilisateur dans un environnement à très basse température, et à étendre le domaine d’application des opérations de réfrigération.
(ZH)
本发明提出一种低温制冷风阀的控制方法及其装置,其中,方法包括:获取当前环境温度;根据当前环境温度,确定当前系统的初始目标压力和风阀的初始开度;获取当前系统实际压力和当前系统目标压力;以及根据当前系统目标压力和当前系统实际压力的差值,对风阀的开度进行调整;其中,风阀设置于低温罩上。由此,通过本发明实施例提出的低温制冷风阀控制方法,根据当前系统目标压力和当前系统实际压力的差值,对风阀的开度进行调整,以满足用户在超低温环境下的制冷需求,并扩展制冷运行范围。
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